Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.physb.2011.02.001
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dc.titleOptical nonlinearity enhanced by metal nanoparticle in CdTe quantum dots
dc.contributor.authorFeng, X.
dc.contributor.authorChen, Y.
dc.contributor.authorHou, D.
dc.date.accessioned2014-10-16T09:35:24Z
dc.date.available2014-10-16T09:35:24Z
dc.date.issued2011-04-15
dc.identifier.citationFeng, X., Chen, Y., Hou, D. (2011-04-15). Optical nonlinearity enhanced by metal nanoparticle in CdTe quantum dots. Physica B: Condensed Matter 406 (9) : 1702-1705. ScholarBank@NUS Repository. https://doi.org/10.1016/j.physb.2011.02.001
dc.identifier.issn09214526
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/97449
dc.description.abstractThe optical nonlinearity of a CdTe quantum dot enhanced by a gold nanoparticle has been theoretically studied by employing the multi-bands effective mass method. The energy levels have been computed using 6×6 k.p model for the valence band. The semiconductor quantum dot-size-dependent third-order susceptibility of third harmonic generation in a CdTeAu nanocrystal complex has been analyzed. It is found that the metal nanoparticle enhances the optical nonlinearity of the semiconductor quantum dot due to the dipole/multipole interaction that will bring in the strong damping and the field enhancement. By choosing the radius of CdTe quantum dot, the third-order nonlinear susceptibility for third harmonic generation can be optimized for the one- and multi-photon resonance. Also, we can alter the optical nonlinearity by changing the ratio of semiconductormetal nanoparticle distance to the metal nanoparticle radius. © 2011 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.physb.2011.02.001
dc.sourceScopus
dc.subjectOptical nonlinearities of condensed matter
dc.subjectQuantum dot
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1016/j.physb.2011.02.001
dc.description.sourcetitlePhysica B: Condensed Matter
dc.description.volume406
dc.description.issue9
dc.description.page1702-1705
dc.description.codenPHYBE
dc.identifier.isiut000290106000011
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